Reservas

Lectura estimada: 3 minutos 2143 puntos de vista

How MiningMath handles stockpiles

Stockpiles are handled as a post-processing stage within the optimization algorithm. After generating the mining surfaces, the algorithm reviews blocks initially considered for discarding and evaluates which ones have the potential to be stored for later processing instead of being sent to the dump. En otras palabras, this all occurs as part of the optimization process, before the final destinations of the blocks are determined.

MiningMath evaluates whether a block’s net value (Ingresos – Costo fijo de minería – Costo de remanipulación) exceeds the cost of discarding it, applying the appropriate discount rates for both the extraction and processing periods. This means that stockpiles effectively optimize blocks initially destined for the dump, potentially recovering additional value. For selecting a block’s destination, MiningMath uses the same logic of maximizing project value. The software identifies which discarded blocks should be reclaimed to address production shortfalls over time, ensuring optimal resource utilization. The diagram below summarizes the stockpile methodology.

Configuración de reservas

Para habilitar las reservas en la interfaz, el primer paso es en la General pestaña donde se requieren dos entradas:

Costo minero fijo: vvalor utilizado para descomponer el valor económico al considerar las existencias.
This cost is essential because MiningMath uses this parameter when calculating valores económicos. It helps break down the block's value, allowing the algorithm to accurately account for costs incurred during mining and those applied during processing.
Costo de remanejo: representa el costo de recuperar bloques de la reserva para el proceso.
This cost is applied to break the valores económicos en partes y aplicar la tasa de descuento en el momento en que se procesa un bloque.

Después, sobre el Destinos pestaña, puede definir límites de existencias para cada planta de procesamiento agregada, recordando que este límite se basa en la vida mía, no en un período de tiempo.

Descargo de responsabilidad: existencias y tonelaje total

Dado que las reservas son una unidad de posprocesamiento del algoritmo, las restricciones de tonelaje total pueden violarse cuando se procesan las existencias. Las restricciones de tonelaje total solo se consideran durante la unidad de procesamiento del algoritmo..

Descargo de responsabilidad: inventory pile, storage and stockpile

When defining the stockpile, MiningMath’s algorithm ensures that ore blocks are not discarded and later recovered from the waste pile. En cambio, ore blocks that cannot be processed immediately due to period constraints are sent to the inventory pile after sequencing. During sequencing, blocks are marked for disposal but are only discarded once storage is finalized. This process ensures that ore blocks, marked for disposal due to period constraints, are identified and stored in an inventory for future processing. This prevents blocks from being mistakenly discarded because of scenario constraints.

Lee mas

Which blocks have been stocked?
Which criteria is used for the reclamation policy?
How to incorporate costos variables de minería into the economic modeling?
How to incorporate a pre-existing stockpile from ongoing operations?
How to incorporate underground material into the optimization along with open-pit material?

MiningMath

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